The utility model belongs to the technical field of the chemical industry equipment, concretely relates to chemical industry experiment bucket, including ring cavity glass housing and laying the base, ring cavity glass housing places on laying the base through the cylinder of bottom, ring cavity glass housing includes initial response chamber, second reaction chamber, third?response chamber and central reaction chamber, and the initial response intracavity is equipped with three baffle, and second reaction chamber and third?response intracavity are equipped with two baffles respectively, are equipped with three drainage tube on the outer wall in initial response chamber, is equipped with two drainage tubes on the outer wall of second reaction chamber, third?response chamber and central reaction chamber respectively, center reaction chamber top is equipped with the toper protection casing, and central reaction chamber bottom is equipped with the delivery pipe, is equipped with the rubber valve on the delivery pipe, be equipped with the three through -hole of equipartition on the baffle, be equipped with toper sealing rubber stopper in the through -hole. The beneficial effect of the utility model: simple structure, reasonable in design uses extensively, and safe and reliable is easy and simple to handle, is convenient for observe, can accomplish chemical reaction in proper order.